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Nitrous oxide detection at 5.26  µm with a compound glass antiresonant hollow-core optical fiber

Nitrous oxide detection at 5.26  µm with a compound glass antiresonant hollow-core optical fiber
Nitrous oxide detection at 5.26  µm with a compound glass antiresonant hollow-core optical fiber

Laser-based gas sensors utilizing various light-gas interaction phenomena have proved their capacity for detecting different gases. However, achieving reasonable sensitivity, especially in the mid-infrared, is crucial. Improving sensor detectivity usually requires incorporating multipass cells, which increase the light-gas interaction path length at a cost of reduced stability. An unconventional solution comes with the aid of hollow-core fibers. In such a fiber, light is guided inside an air-core which, when filled with the analyte gas can serve as a low-volume and robust absorption cell. Here we report on the use of a borosilicate antiresonant hollow-core fiber for laser-based gas sensing. Due to its unique structure and guidance, this fiber provides low-loss, single-mode transmission $ {\gt} {5}\;{\unicode{x00B5}{\rm m}}$>5µm. The feasibility of using the fiber as a gas cell was verified by detecting nitrous oxide at 5.26 µm with a minimum detection limit of 20 ppbv.

0146-9592
1326-1329
Jaworski, Piotr
3f26ec92-961f-4d52-a1be-a7b2ab0f3b8f
Krzempek, Karol
7549680c-13c4-4724-be14-a07b7edacb14
Dudzik, Grzegorz
9aa04340-8a29-4640-961d-e9c2d03a2d1c
Sazio, Pier J.
0d6200b5-9947-469a-8e97-9147da8a7158
Belardi, Walter
d09d8952-9503-4ccc-b696-0d53f7d97732
Jaworski, Piotr
3f26ec92-961f-4d52-a1be-a7b2ab0f3b8f
Krzempek, Karol
7549680c-13c4-4724-be14-a07b7edacb14
Dudzik, Grzegorz
9aa04340-8a29-4640-961d-e9c2d03a2d1c
Sazio, Pier J.
0d6200b5-9947-469a-8e97-9147da8a7158
Belardi, Walter
d09d8952-9503-4ccc-b696-0d53f7d97732

Jaworski, Piotr, Krzempek, Karol, Dudzik, Grzegorz, Sazio, Pier J. and Belardi, Walter (2020) Nitrous oxide detection at 5.26  µm with a compound glass antiresonant hollow-core optical fiber. Optics Letters, 45 (6), 1326-1329. (doi:10.1364/OL.383861).

Record type: Article

Abstract

Laser-based gas sensors utilizing various light-gas interaction phenomena have proved their capacity for detecting different gases. However, achieving reasonable sensitivity, especially in the mid-infrared, is crucial. Improving sensor detectivity usually requires incorporating multipass cells, which increase the light-gas interaction path length at a cost of reduced stability. An unconventional solution comes with the aid of hollow-core fibers. In such a fiber, light is guided inside an air-core which, when filled with the analyte gas can serve as a low-volume and robust absorption cell. Here we report on the use of a borosilicate antiresonant hollow-core fiber for laser-based gas sensing. Due to its unique structure and guidance, this fiber provides low-loss, single-mode transmission $ {\gt} {5}\;{\unicode{x00B5}{\rm m}}$>5µm. The feasibility of using the fiber as a gas cell was verified by detecting nitrous oxide at 5.26 µm with a minimum detection limit of 20 ppbv.

Text
Nitrous Oxide detection at 5.26 μm with a compound glass Antiresonant Hollow-Core Optical Fiber - Accepted Manuscript
Restricted to Repository staff only until 3 March 2021.
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More information

Accepted/In Press date: 30 January 2020
e-pub ahead of print date: 3 March 2020
Published date: 15 March 2020

Identifiers

Local EPrints ID: 439490
URI: http://eprints.soton.ac.uk/id/eprint/439490
ISSN: 0146-9592
PURE UUID: 893ed852-c38c-4871-863c-93042668ac2d
ORCID for Pier J. Sazio: ORCID iD orcid.org/0000-0002-6506-9266

Catalogue record

Date deposited: 24 Apr 2020 16:30
Last modified: 20 May 2020 00:33

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